How to use ThinkPHP to implement comment function

What is ThinkPHP

First, let us understand what ThinkPHP is. ThinkPHP is a free and open source PHP development framework. Its emergence greatly simplifies the development of WEB applications. The ThinkPHP framework has a wide range of functional modules, is good at expansion, and can achieve excellent performance.

Implementation of the comment function in the ThinkPHP framework

In the ThinkPHP framework, the implementation of the comment function is generally divided into the following steps:

1. Create database table

First, we need to create a table in the database to store comment information. This table should at least include the following fields: comment ID, article ID, commenter name, comment content, comment time, etc.

2. Create comment model

In the ThinkPHP framework, we can use "model" to implement operations on the database. Therefore, next we need to create a comment management model file. This file should contain some basic methods, such as adding comments, deleting comments, querying comments, etc.

3. Implementing the comment controller

The comment controller is the core part of implementing the comment function. In this controller, we need to define some methods to respond to user requests, such as displaying a list of comments, adding comments, modifying comments, deleting comments, etc.

4. Create comment view

In the ThinkPHP framework, views are used to display pages. Therefore, we need to create a comment view file, which should include some basic HTML and CSS code to present the comment content that users see.

5. Implementing asynchronous submission

When implementing the comment function, we usually use asynchronous submission to avoid page refreshes. In the ThinkPHP framework, we can use front-end frameworks such as jQuery to implement asynchronous submission. After submitting a comment, you need to use AJAX and other methods to transmit the comment data to the server and accept server-side processing.

6. Achieving unlimited replies

In some situations, we need to implement unlimited reply functions. In this case, we need to add A "parent ID" field. This field is used to store the ID of the upper-level comment to implement the hierarchy of comments.

7. Implement verification code

We need to add the verification code function in the comment box to avoid malicious comments and robot comments. We can use the verification code class built into the ThinkPHP framework to implement the verification code function.

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